# Search and research MCP servers online

Check the source documentation for each connection.

2 MCP servers. Also on the [web page](https://mcpdirectory.fyi/it/global/online/category/search-research).

## MCP servers

1. [Adamamer20 Paper Search Mcp Openai](https://mcpdirectory.fyi/it/global/online/adamamer20-paper-search-mcp-openai.md), Search and research, Online: Search and download academic papers from arXiv, PubMed, bioRxiv, medRxiv, Google Scholar, Semantic…
2. [Ckan Mcp Server](https://mcpdirectory.fyi/it/global/online/ckan-mcp-server.md), Data and databases, Online: MCP server for interacting with CKAN open data portals

## Other categories in Online

- [Developer tools](https://mcpdirectory.fyi/it/global/online/category/developer-tools.md): 6 MCP servers
- [Data and databases](https://mcpdirectory.fyi/it/global/online/category/data-databases.md): 2 MCP servers
- [Knowledge and memory](https://mcpdirectory.fyi/it/global/online/category/knowledge-memory.md): 2 MCP servers
- [Productivity and collaboration](https://mcpdirectory.fyi/it/global/online/category/productivity-collaboration.md): 2 MCP servers
- [Sales and marketing](https://mcpdirectory.fyi/it/global/online/category/sales-marketing.md): 2 MCP servers
- [Communication](https://mcpdirectory.fyi/it/global/online/category/communication.md): 1 MCP server
- [Finance and crypto](https://mcpdirectory.fyi/it/global/online/category/finance-crypto.md): 1 MCP server
- [Security](https://mcpdirectory.fyi/it/global/online/category/security.md): 1 MCP server
- [Web and browser automation](https://mcpdirectory.fyi/it/global/online/category/web-browser-automation.md): 1 MCP server